 | Kate Beckinsale als Lady Susan Vernon |
 | Xavier Samuel als Reginald DeCourcy |
 | Morfydd Clark als Frederica Vernon |
 | Emma Greenwell als Catherine DeCourcy Vernon |
 | Tom Bennett als Sir James Martin |
 | James Fleet als Sir Reginald DeCourcy |
 | Jemma Redgrave als Lady DeCourcy |
 | Justin Edwards als Charles Vernon |
 | Stephen Fry als Mr. Johnson |
 | Chloë Sevigny als Alicia Johnson |
 | Jenn Murray als Lady Lucy Manwaring |
 | Lochlann O'Mearáin als Lord Manwaring |
 | Sophie Radermacher als Miss Maria Manwaring |
 | Jordan Waller als Edward, Head Footman |
| Ross Mac Mahon als Owen |
 | Kelly Campbell als Mrs. Cross |
| Conor Lambert als Wilson the Butler |
 | Conor MacNeill als The Young Curate |
 | Frank Melia als Coachman |
| Sylvie Benoiton als Vernon Child |
| Daniel Magee als Vernon Child |
| Rowan Finken als Footman at Churchill |
| Dave Timbs als Footman at Churchill |
| Laura Whelan als Maid at Churchill |
| James Crerar als Footman at Churchill |
| John Brennan als Footman at Edward Street |
| Olivia Fahy als Maid at Edward Street |
| Ellie Houlihan als Maid at Edward Street |
| Carla McGlynn als Maid at Upper Seymour Street |
 | Darragh O'Connor als Stable Boy |
| Frank Prendergast als Approaching Gentleman |
| Whit Stillman | Director |
| Richard Van Oosterhout | Director of Photography |
| Sophie Corra | Editor |
| Colin Jones | Casting |
| Anna Rackard | Production Design |
| Louise Mathews | Art Direction |
| Lauranne Bourrachot | Producer |
| Collin de Rham | Executive Producer |
| Katie Holly | Producer |
| Olivier Père | Co-Producer |
| Whit Stillman | Producer |
| Raymond van der Kaaij | Co-Producer |
| Kieron J. Walsh | Executive Producer |
| Kerry Barden | Casting |
| Paul Schnee | Casting |
| Toby Spigel | Casting Associate |
| Colm Nolan | Location Manager |
| Julien Benoiton | First Assistant Director |
| Enda Doherty | Second Assistant Director |
| Eimer Ní Mhaoldomhnaigh | Costume Design |
| Lynn Johnson | Key Makeup Artist |
| Eileen Buggy | Key Hair Stylist |
| Jean-Luc Audy | Sound |
| Chris Roufs | Continuity |
| Cathleen Dore | Line Producer |
| Silé Dorney | Production Accountant |
| Trevor Brown | Associate Producer |
| Trevor Brown | Dramaturgy |
| Teddy Blanks | Title Designer |
| Tim Fletcher | Gaffer |
| Mack | Focus Puller |
| Ranko Pauković | Supervising Sound Editor |
| Steven Ghouti | Sound Re-Recording Mixer |
| Lawrence Horne | Dialogue Editor |
| Fernando Rodrigues | Colorist |
| Hans van Helden | VFX Supervisor |
| Melanie Bigeard | Assistant Editor |
| Mark Suozzo | Music Director |
| Benjamin Esdraffo | Original Music Composer |
| Tomàs Peire Serrate | Assistant Music Supervisor |
| Etienne Jardin | Music Consultant |
| Marco Cherqui | Co-Producer |
| Russell Pennoyer | Executive Producer |
| Nigel Williams | Executive Producer |
| Whit Stillman | Writer |
| Stephen McLaughlin | Scoring Mixer |
| Stephen McLaughlin | Score Engineer |
| Jane Austen | Short Story |
